For young souls: remember, that every time you feed homeless person or stray animal (any animal) you actually feed your own soul.
For old souls: remember who you are and don’t judge yourself for being too sensitive.
To all the souls: love each other. We all are the same. No matter what color is our skin, which nationality we are, how tall we are and how old our bodies are, who is more or less educated amd makes more or less money, how big or small are our houses or apartments. This life is not about anything of this. Travel more, expand your world. Meet people of different traditions. Read classic book and listen to immortal music. That is how you grow and educate yourself.